– Lat/Long: 48.71° N 121.99° W
South Twin Sister
Weather Forecast, United StatesIssued: 4 am Sat 11 Apr Local TimeUpdates in: hr min sUpdate imminent
Issued: 4 am Sat 11 Apr Local Time
Updates in:
Update imminent hr min s
Issued: 4 am Sat 11 Apr Local Time
Updates in:
Update imminent hr min s
3 South Twin Sister Elevations: 3 Forecast Elevations: Days 1–3 Weather SummaryModerate rain (total 11mm), heaviest on Sat afternoon. Very mild (max 10°C on Sat morning, min 3°C on Mon night). Wind will be generally light. | Days 4–6 Weather SummaryHeavy rain (total 36mm), mostly on Tue night. Becoming colder with a light covering of snow, mostly falling on Tue night. Freeze-thaw conditions (max 4°C on Thu afternoon, min -2°C on Wed night). Wind will be generally light. | |||||||||||||||||
Saturday 11 | Sunday 12 | Monday 13 | Tuesday 14 | Wednesday 15 | Thursday 16 | |||||||||||||
AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | |
 |  |  | |  | | | | |  |  |  |  |  |  | | |  | |
cloudy | light rain | light rain | light rain | rain shwrs | light rain | light rain | light rain | light rain | mod. rain | heavy rain | light snow | light snow | snow shwrs | some clouds | light rain | rain shwrs | rain shwrs | |
km/h | ||||||||||||||||||
 |  |  |  |  |  | |||||||||||||
— | — | — | — | — | — | — | — | — | — | — | 4 | 2 | 1 | — | — | — | — | |
— | 4 | 0.8 | 0.1 | 0.4 | 1 | 0.7 | 0.9 | 3 | 6 | 11 | 15 | — | 1.4 | — | 0.5 | 2 | 0.3 | |
max °C | 10 | 8 | 7 | 8 | 10 | 9 | 5 | 6 | 5 | 3 | 3 | 3 | 1 | 2 | 0 | 2 | 4 | 2 |
min °C | 9 | 7 | 7 | 8 | 9 | 6 | 5 | 5 | 3 | 3 | 3 | -1 | 0 | 1 | -2 | 1 | 3 | -1 |
9 | 6 | 7 | 8 | 9 | 4 | 3 | 3 | 0 | 0 | -1 | -4 | -2 | -1 | -2 | 1 | 2 | -1 | |
2000 | 1800 | 1800 | 1850 | 1950 | 1800 | 1300 | 1300 | 1050 | 900 | 1000 | 600 | 650 | 750 | 200 | 800 | 1000 | 250 | |
Cloud base (m) | 2050 | 550 | 550 | 550 | 600 | 550 | 600 | 600 | 600 | 550 | 550 | 550 | 550 | 550 | 600 | 600 | 600 | 850 |
 | 6:24 | — | — | 6:22 | — | — | 6:20 | — | — | 6:18 | — | — | 6:16 | — | — | 6:15 | — | — |
 | — | 7:52 | — | — | 7:53 | — | — | 7:55 | — | — | 7:57 | — | — | 7:59 | — | — | — | 8:00 |
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South Twin Sister Weather (Days 0-3):
The weather forecast for South Twin Sister is: Moderate rain (total 11mm), heaviest on Sat afternoon. Very mild (max 10°C on Sat morning, min 3°C on Mon night). Wind will be generally light.
South Twin Sister Weather (Days 3-6):
Heavy rain (total 36mm), mostly on Tue night. Becoming colder with a light covering of snow, mostly falling on Tue night. Freeze-thaw conditions (max 4°C on Thu afternoon, min -2°C on Wed night). Wind will be generally light.
This table gives the weather forecast for South Twin Sister at the specific elevation of 500 m. Our advanced weather models allow us to provide distinct weather forecasts for several elevations of South Twin Sister. To see the weather forecasts for the other elevations, use the tab navigation above the table. For a wider overview of the weather, consult the Weather Map of Washington.